Green Wire out of fuse block? - Page 2 - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

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post #16 of 26 (permalink) Old Feb 3rd, 19, 10:20 PM
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Chuck
 
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On my stock, functioning A/C in my 69 Camaro, the green wire goes to the A/C compressor.
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post #17 of 26 (permalink) Old Feb 3rd, 19, 11:22 PM
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Re: Green Wire out of fuse block?

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Originally Posted by Chevy 70 SS vert View Post
Anybody have any thoughts what this green wire is for coming out of the fuse block on a 1970 Chevelle?
Is the wire actually coming out the fuse block or the bulkhead connector ?

I have read that on some reproduction engine wiring harness they do not wire exactly like original and they use a horn relay inside the car instead of under the hood. The engine harness you have may be designed for a horn relay to be inside the car. Originally not all of the bulkhead connectors were used and maybe the aftermarket supplier of the engine harness you have used an unused spot for some undefined circuit ?.

I would maybe unplug things and do some continuity checks to see what is going on.

Jim
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post #18 of 26 (permalink) Old Feb 4th, 19, 6:38 PM
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Re: Green Wire out of fuse block?

Not a factory termination. Looks like someone got creative with a factory wire.

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post #19 of 26 (permalink) Old Feb 4th, 19, 7:55 PM
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Re: Green Wire out of fuse block?

Let's see a picture looking into te end of the connector.

I blew up the picture and see it's a green wire with a white tracer.
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post #20 of 26 (permalink) Old Feb 4th, 19, 8:22 PM
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Re: Green Wire out of fuse block?

If you look over in performance a fellow just replaced morel lifters with Johnson on a 540 with a Straub cam, I noticed a green wire going to what looks like a temp sensor, his is a 68, "Sound of Silence" hope this helps

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post #21 of 26 (permalink) Old Feb 4th, 19, 9:07 PM Thread Starter
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Re: Green Wire out of fuse block?

Quote:
Originally Posted by DUTCH MAX HEADWORK View Post
Do your bright lights work? I see lt green wire that connects to the dimmer switch then leads to the bright headlights.

I see another green wire that goes to the temps sender to one prong, then from another prong on the temp sender to the TCS switch.
The wire to the a/c compressor is dkgreen too.

Can you trace the wire? Does it go tho the firewall bulkhead electrical connector?

Your running lights are on a circuit with brown wire.

If it seems like a mystery wire, hook up a test light and turn everything on one thing at a time. You might get lucky and figure it out. If your temp gauges moves, when you ground your test light, you know it's a temp sending wire.
This green wire comes out of the wiring loom 6" after it comes out of the bulk head connector.

Car is a non A/C car.

Chas

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http://img.photobucket.com/albums/v2...3/IMG_2698.jpg

"The past is gone. The future may never see a car like this. It is one of the brutes, and all it needs is a way of staying in contact with terra firma" Hot Rod Magazine, May 1970.
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post #22 of 26 (permalink) Old Feb 4th, 19, 9:23 PM
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Re: Green Wire out of fuse block?

Chas, do you mean it comes from the bulkhead connector?

The stock harness shows it going to the temperature sensor.

The A/C compressor wire is also dark green but is a single wire that goes back to the A/C harness, which is a separate harness than everything related o the bulkhead connector. As this car doesn't have A/C, none of that will exist.

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post #23 of 26 (permalink) Old Feb 5th, 19, 6:53 AM
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Re: Green Wire out of fuse block?

Quote:
Originally Posted by Coppertop View Post
Not a factory termination. Looks like someone got creative with a factory wire.

If you look at the pictures in post 1 you can see the heat shrink on a splice or repair.


There is also a large wrap of wire on the inner fender that appears abnormal.


Are we sure this was a NEW harness or is it one from a 71 0r 72 that may have been made to work???? Some pictures of the headlight connections and drivers side inner fender wiring may reveal more.

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Last edited by LevonH; Feb 5th, 19 at 11:56 AM.
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post #24 of 26 (permalink) Old Feb 5th, 19, 10:14 PM Thread Starter
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Re: Green Wire out of fuse block?

Quote:
Originally Posted by Chevy 70 SS vert View Post
This green wire comes out of the wiring loom 6" after it comes out of the bulk head connector.

Car is a non A/C car.
My guess is it is an A/C compressor wire. I will check it when I get home this weekend.

Chas

My car:

http://img.photobucket.com/albums/v2...3/IMG_2698.jpg

"The past is gone. The future may never see a car like this. It is one of the brutes, and all it needs is a way of staying in contact with terra firma" Hot Rod Magazine, May 1970.
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post #25 of 26 (permalink) Old Feb 10th, 19, 11:37 PM Thread Starter
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Re: Green Wire out of fuse block?

Quote:
Originally Posted by Chevy 70 SS vert View Post
This green wire comes out of the wiring loom 6" after it comes out of the bulk head connector.

Car is a non A/C car.
After spending some time on the car this weekend everything electrical (running lights) now works as it should. Bright lights have always worked. The green wire will just require a little more diagnoses.
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Chas

My car:

http://img.photobucket.com/albums/v2...3/IMG_2698.jpg

"The past is gone. The future may never see a car like this. It is one of the brutes, and all it needs is a way of staying in contact with terra firma" Hot Rod Magazine, May 1970.
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post #26 of 26 (permalink) Old Feb 12th, 19, 8:07 PM
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Jim
 
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Re: Green Wire out of fuse block?

I don't know anything about wiring as evidenced by some of my questions, but the green wire coming out of the firewall on my '69 goes to the tach. Doesn't have that kind of connector. It's terminated with a spade connector.
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